Power injection catheters
First Claim
Patent Images
1. A catheter comprising:
- an elongated catheter body including a proximal end and a distal end, the body comprising a plurality of lumens;
a plurality of extension tubings each of which comprising a proximal end and a distal end, each of the distal ends being connected to the proximal end of the catheter body, and each of the tubings comprising a lumen in fluid communication with one of the plurality of lumens in the catheter body; and
an inter-connector comprising an input port and a plurality of output ports, the output ports being in fluid communication with the input port, each of the output ports being configured for connection to the proximal end of one of the extension tubings, at least one of the plurality of extension tubings being connected to one of the output ports.
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Abstract
A power injection catheter for high flow rate delivery of fluids. The power injection catheter may include a pressure relief mechanism for preventing overpressurizing within the lumen of the catheter. The pressure relief mechanism may be configured to prevent sudden pressure build-up inside the catheter lumen by absorbing, buffering or releasing pressure inside the lumen during pressure spikes. The power injection catheter may also take the form of a multi-lumen catheter capable of simultaneous infusions of a single fluid through two or more of the lumens in the catheter.
108 Citations
41 Claims
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1. A catheter comprising:
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an elongated catheter body including a proximal end and a distal end, the body comprising a plurality of lumens;
a plurality of extension tubings each of which comprising a proximal end and a distal end, each of the distal ends being connected to the proximal end of the catheter body, and each of the tubings comprising a lumen in fluid communication with one of the plurality of lumens in the catheter body; and
an inter-connector comprising an input port and a plurality of output ports, the output ports being in fluid communication with the input port, each of the output ports being configured for connection to the proximal end of one of the extension tubings, at least one of the plurality of extension tubings being connected to one of the output ports. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A method of injecting a fluid into a patient'"'"'s body, comprising:
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inserting a multi-lumen catheter into the circulatory system of a patient; and
simultaneously injecting fluids from a single fluid source into a plurality of lumens within the multi-lumen catheter. - View Dependent Claims (19, 20, 21, 22)
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- 23. A pressure relief device, comprising a housing including three ports, the three ports being in fluid communication with each other, a first port configured for receiving a fluid from a fluid source and a second port configured to allow fluids from the fluid source to flow through, and a third port sealed by a pressure relief mechanism, the pressure relief mechanism being configured to rupture and release the fluid through the third port when the pressure exerted on the pressure relief mechanism exceeded a predefined pressure threshold.
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29. A pressure relief inter-connector, comprising:
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a housing including a distal end and a proximal end, the housing surrounding a lumen running from a first opening at the distal end to a second opening on the proximal end, a side opening provided on the housing for accessing the lumen, the proximal end being configured for connection to a fluid source, and the distal end being configured for connection to a catheter; and
a non-compliant balloon sealing the side opening.
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30. A power injection catheter, comprising:
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an elongated catheter body comprising a lumen extending from a proximal end to a distal end thereof; and
a balloon positioned in a proximal portion of the catheter, the balloon being configured to relieve fluid pressure within the lumen when the lumen is overpressurized, and wherein the balloon comprises a non-compliant material.
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31. A fluid delivering device comprising:
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a catheter configured with a plurality of lumens; and
a valve configured to permit fluid flow between the plurality of lumens. - View Dependent Claims (32, 33, 34)
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35. A method of preventing over pressurizing of a catheter comprising:
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infusing fluid into the catheter; and
directing the fluid to flow pass a pressure relief mechanism, wherein said pressure relief mechanism has a predefined pressure threshold for relieving pressure within the catheter. - View Dependent Claims (36, 37, 38, 39)
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40. A method of fluid infusion comprising:
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inserting a bifurcating catheter into a circulatory system of a patient; and
connecting a first bifurcating branch of the bifurcating catheter onto a second bifurcating branch of the bifurcating catheter. - View Dependent Claims (41)
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Specification